Once the level begins, go right, keeping the long brick
wall on your right-hand side. As you approach a small building, sneak around the
left edge and take down the unsuspecting duo there. Keep moving forward until
you reach an area with large, yellow containers. Sneak up behind the conference
and grab a shield (not the skull icon guy) and use it to protect yourself as you
mow everyone down. Grab and drag the informant to the special interrogation spot
and wring some info out of him; namely, where to pick up some grenades.

Go move the nearby dumpster and snag the flashbangs then
head through the wooden door next to where you interrogated the last informant.
As you move forward, the dock ahead will collapse. You can't go that way, so
veer right at the trees and cut between the building, sure to find cover and use
it as you gun down the thugs. Move around the corner and cut inside the
building. Grab a shield and mow down everyone inside, except the skull-bearer.
Use the special spot to interrogate him. He'll tell you that Black Widow is in
the restaurant at the end of the pier.

Exit through the doors opposite where you entered,
immediately taking cover behind the yellow box outside. Use cover to fire on the
distant thugs, including the ones who appear above the gazebo-shaped building
ahead. Keep moving forward, moving behind the large, yellow crates and always
firing from a position of cover.

The building near the end of the pier is the restaurant,
and it's loaded with goons. If you have a human shield, keep him and tear up the
room as much as possible then fall back and let the guys run to you. Flashbangs
work well to confuse a number of the thugs, making them easy targets for your
rifle. Or, slipping into Slaughter Mode can make the restaurant a very easy
endeavor, indeed.

Once it's cleared out, head through the double doors at
the back. Kill one goon and grab the informant. Place him under the knife rack
and extract info by wiggling the analog stick. When he coughs up his special
nugget of intel, exit through the green door. There are two doors in the next
hall. The one straight ahead contains weapons. Grab them and head through the
right door. This is where Black Widow is being held. Zoom in and pop her captor
in the head then clear out the rest of the room. Talk to Black Widow and she'll
tell you a stolen Russian nuke is coming in. When your chat is over, the level
will save and Black Widow will back you up.

Head through the double doors and out into an alleyway.
Blast through the enemy until you reach a dumpster outlined with a blue
rectangle. Use the action button to push the dumpster down the incline and
follow it as it goes to protect yourself from fire.

When it stops, skirt around the nearby dumpster and
pepper the nearby goons with fire. Proceed through the next door and use Black
Widow to your advantage. As she runs through and kills gangsters (she's
impervious to their bullets, apparently), you can swing around the side and kill
without drawing fire. Make your way through the large yard littered with crates.
On the right side of the area is a special interrogation. Grab the skull icon
and stomp the info out of him.

With that done, polis off anyone remaining in the yard
and move to the far end. Before going through the white door, be sure to snag
the nearby flashbangs. Talk to Black Widow then bust through the door and
continue the onslaught. If you can get both guys here, it will make your job a
little easier. Otherwise, one guy will jump in the water and make off to find
reinforcements. Before you head up the stairs, switch to the heavy hip-held gun.
It will make enemies into mince meat.

Take the stairs, leaving Black Widow behind for now.
It's your job to clear out the upper part of the warehouse, which shouldn't be
an issue. Kill everyone at this level and move down the stairs, stepping through
the door below. Smoke the dude holding a man hostage and mow down the rest of
the fools in this room. Down the stairs is a man with a skull icon above him.
Chase him as he runs away and he'll lead you to one of the best special
interrogations in the game. Let's just say this it involves a shark.

Return to the previous area and go through the white
door. Here you will meet back up with Black Widow. Make your way through the
maze of crates, working with Widow. When you reach the switch next to the
roll-up door, press it and move through. Go around the corner and take down the
yahoo convention at the far end of the area.

Move around the plane and you'll see a trio of baddies
talking. Snag one, kill the other and interrogate the third (you can interrogate
him using the propeller if you throw the switch on the nearby console). He will
cough up keys to a weapon locker.

Talk to Black Widow and you'll part ways once again.
Move forward, killing the thugs who lurk behind the crates and move through the
white door. You'll find yourself in another large yard with more enemies stashed
behind large shipping crates. Work your way carefully through, using cover and
taking on no more than a couple guys at a time. Your ultimate destination is a
pair of wire gates on the left side (from where you entered) of the yard.

Once through, you'll see some of Widow's handiwork. Move
up the ramp here, surprising the villains you find at the top. Kill all but the
skull-bearer, who you should dangle over the railing to pump for intel. When
he's yapped, press the switch next to the nearby door and step through.

Clear out the next room (so you don't get attacked from
behind) and move to the next door, which is directly across from where you
entered. This leads out to a catwalk above the large yard. Follow the walkway to
a ladder that leads up to a crane. Take control of it and, using the left
analog, press up to make the crane rise up. Press and hold down to slam the
crane into the boat and repeat the process until it is destroyed. Slide down the
ladder and retrace your steps back to the ramp.

The opposite door is open and a group of enemies will be
waiting. Wax them and keep moving through this room. At the back is a green
door. Outside, take the ladder down and help Black Widow in the yard below.
Shoot her captor and she will do the rest. Continue through the yard, using the
special interrogation point nearby if you wish. Also nearby is a switch for
another door. Step inside to take on the boss a giant tank.

Taking down the tank is easier than it originally looks.
Use the crates in the room as cover and move to the near left corner. Here
you'll find a grenade launcher, which is invaluable in this fight. Grab it and
weave through the crates, making your way to the center of the room. Dodge the
tank's missile blasts and stand roughly in the middle of the room, aiming
slightly up to arch the shots into the tank. A half-dozen hits or so should do
the trick. When the tank is done, so is the level.